Substance profile
1,4,5,6,7,7-hexachlorobicyclo [2,2,1]hept-5-ene-2,3-dicarboxylic anhydride chlorendic anhydride
1,4,5,6,7,7-hexachlorobicyclo [2,2,1]hept-5-ene-2,3-dicarboxylic anhydride chlorendic anhydride is fine white crystals.
01 · Identification
What 1,4,5,6,7,7-hexachlorobicyclo… is
1,4,5,6,7,7-hexachlorobicyclo [2,2,1]hept-5-ene-2,3-dicarboxylic anhydride chlorendic anhydride is fine white crystals. It melts at 239 °C.
Under the GHS it carries the signal word Warning.
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H335 | May cause respiratory irritation. |
| H315 | Causes skin irritation. |
| H319 | Causes serious eye irritation. |
Precautionary statements: P264, P280, P302, P305, P313, P332, P337, P338, P352
This page lists only the codes assigned to 1,4,5,6,7,7-hexachlorobicy…. The full reference lives on the hazard statements hub, the precautionary statements hub and the GHS pictograms hub.
03 · Physical and chemical properties
1,4,5,6,7,7-hexachlorobicyclo… properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | 239 °C (462.2 °F) | HSDB | |
| 233 °C (451.4 °F) | range, midpoint shown | ICSC | |
| Density | 1.73 g/cm³ | HSDB | |
| Solubility | Readily sol in acetone, benzene, toluene; slightly sol in water, n-hexane, carbon tetrachloride | HSDB | |
| Solubility in water: reaction | ICSC | ||
| In water, 0.086 mg/L @ 25 °C | at 25 °C, Estimated | HSDB | |
| Vapor pressure | 5.5e-7 mmHg | at 25 °C | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.
04 · Handling and storage
Storing and handling 1,4,5,6,7,7-hexachlorobicyclo…
Storage conditions
Dry. Well closed.
Source: Hazardous Substances Data Bank (HSDB)
Incompatible materials
Chlorendic anhydride will react almost quantitatively with excess methanol to form monomethyl chlorendate
Source: Hazardous Substances Data Bank (HSDB)
Planning storage for a mix of chemicals? Check 1,4,5,6,7,7-hexachlorobic… in the storage compatibility matrix →
Safety Data Sheet
Getting an SDS for 1,4,5,6,7,7-hexachlorobicy…
A Safety Data Sheet is written for a product, not for a substance: the supplier of the grade you actually buy issues it, so two suppliers of 1,4,5,6,7,7-hexachloro… issue two different sheets. That is why there is no single authoritative SDS for a substance to download — what there is, is the job of collecting the sheets for the products you hold and keeping them current as suppliers revise them.
Nearby
Substances next to 1,4,5,6,7,7-hexachlorobicy…
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